Swapping CPUs on a Motherboard

[Gloria J. Howard]

Hi,

I have a VX Pro Motherboard that came with a Pentium 120 CPU. The
computer worked fine using that CPU but when I exchanged the 120 with a
Pentium 166 nothing happened. I am fairly new at this but I thought
that CPU were interchangeable. Does anyone have any suggestions as to
why this happened and how to correct the problem if possible.

Also, is it possible to customize windows in order to control what a
person sees on your computer. I would like for each of my kids to have
access to certain files and applications..not everything on my computer.

Any help anyone can give me will be greatly appreciated!!

Thanks,
Gloria

--

[Ken Blake]

Gloria J. Howard wrote in message <3530574...@proresults.com>...

>Hi,
>
>I have a VX Pro Motherboard that came with a Pentium 120 CPU. The
>computer worked fine using that CPU but when I exchanged the 120 with a
>Pentium 166 nothing happened. I am fairly new at this but I thought
>that CPU were interchangeable. Does anyone have any suggestions as to
>why this happened and how to correct the problem if possible.

Some motherboards provide support for faster processors than the one
that came with them; some don't. You can not assume that you motherboard
permits you to do what you tried. You need to check your manual and/or
vendor to find out whether this is possible.

Ken Blake
To respond by E-mail, delete the x in my return address

[Mike Ervin]

Gloria J. Howard wrote:
>
> Hi,
>
> I have a VX Pro Motherboard that came with a Pentium 120 CPU. The
> computer worked fine using that CPU but when I exchanged the 120 with a
> Pentium 166 nothing happened. I am fairly new at this but I thought
> that CPU were interchangeable. Does anyone have any suggestions as to
> why this happened and how to correct the problem if possible.
>

> Also, is it possible to customize windows in order to control what a
> person sees on your computer. I would like for each of my kids to have
> access to certain files and applications..not everything on my computer.
>
> Any help anyone can give me will be greatly appreciated!!
>
> Thanks,
> Gloria
>
> --

The problem is as follows:

The 120 Mhz cpu has a 3.3 voltage requirement
The 166 Mhz cpu has a 3.4 - 3.6 voltage requirement

The 120 Mhz cpu needs to run at 60 Mhz bus frequency x 2 clock
multiplier

example: 60 Mhz x 2 = 120 Mhz cpu speed

The 166 Mhz cpu needs to run at 66 Mhz bus frequency x 2.5 clock
multiplier

example: 66 Mhz x 2.5 = 165 Mhz cpu speed

Check your computer manuals or the motherboard manuals for the
jumper settings on your motherboard you need to change to
accomplish this.

--
Mike Ervin
Stop by and say hello at http://www.shelby.net/mgervin
Info on Dial Up Networking and other Misc problems

[Ned Harkey]

You will need to move some Jumper Caps on your mother-board to increase the
clock cycle speed in order to utilize the full MHz power of your new chip.
Refer to the mother-board book that came with your computer for
instructions. Bare in mind that some boards are limited to lower clock
speed settings. To use different desktops for your kids go to "Start",
"Settings", "Control Panel" and click on "Passwords". Then select the "User
Profiles" tab and change to "Users can Customize...", this should get you
going.

[calico]

Yes, check the settings and make sure they match but NO, the voltage is not
necessarily 3.4 or greater.

To check the voltage, flip the CPU upside down and read the markings on the
bottom. If there are three letters that say

VSS or STD, then it is 3.3 volts.

If it says

VRE it is 3.5 volts.

If it says 2.8 or MMX on the front it is a dual voltage 2.8 to 3.3 IO and
requires a M/B that can handle dual plane voltages.

Good advice on the other question in another reply.

Good luck!

Calico

Mike Ervin <mge...@shelby.net> wrote in article
<35304644...@shelby.net>...